Sole-fitting machine



J. W. COSGROVE.

SOLE FITTING MACHINE.

APPLICATION FILED 0CT.19, 1917 Patented Apr. 26, 1921.

UNITED STATES "PATENT OFFICE.

JOHN W. COSGROVE, OF EIEDFORD, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

SOLE-FITTING MACHINE.

Specification of Letters Patent.

Patented Apr. 26, 1921.

Application filed October 19, 1917. Serial No. 197,464..

T 0 all whom may concern:

Be it known that I, JOHN W. Cosenovn, a citizen of the United States,residing at Medford,,in the county of Middlesex and State ofMassachusetts, have invented certain new and useful Improvements inSole- FittingMachines; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to sole fitting machines and'more particularly tosuch machines for preparing the toes of insoles for the lip turningoperation, such as the machine illustrated and described in LettersPatent of the United States, No. 1,087,578, dated February 17,1914, toJohn B. H'adaway.

The present invention relates to improvements in the sole engagingdevicesfor fitting machines adapted particularly to the mechanism of themachine of said patent, although those skilled inthe art will recognizethat the scope of the invention is notlimited to sole fitting .machinesfor performing the special operation therein described.

The objects of theinvention will be apparent from the followingdescription of the featuresand combinations ofparts by which the objectsare attained, and which are illustrated inthe accompanying drawings ofthe preferred form of the invention.

In the drawings Figure 1 is. a front elevation of the head of themachine shown in said patent, with the present improvement added; Fig. 2is a central, vertical section through the head shown in Fig. 1; Fig. isa plan of the improved work support; and Fig. 4 is a detail of partstobe described.

In the embodiment ofthe invention illustrated in the drawings the frame5 of the head, the reciprocatingplunger 7 carrying the V-shaped lipknife 9 and the inoising flap knife 11,.driven by the wristpin 13 on thedriving shaft 15, and the work supporting table '17 carried on theyielding plunger 19 guided in the lower part ofthe frame 5; all may be,and preferably are, ofthe same design as like parts in said patent. Theoperating mechanism for the'driving shaft 15 may be of any convenientdes gn but is preferably constructed like that illustrated insaid patentwherein the revolutions of having flat heads'27.

the shaft are controlled'by a onerevolution clutch of the Horton typeoperated by a foot treadle, all as usual and well known.

In the machine of said patent two presser gages are provided, one ateach side ofthe knives 9 and .11 carried at thelower end of a presserbar 21 mounted for vertical-adjustment on the knife plunger 7. It hasbeen found that in the machine of said patent there is a decidedtendency for thesole to pick up or rise withthe knives embedded therein,which undesired movement is obj ectionable in that in removing the-solefrom the knives, which is done'hastily, eitherthe flap knife is brokenor the sole iszmutilated boring the two depending *feet'23 and 25,

which .formed the old presser gages, and setting in the'bores springpresse'dplungers (Figs..1 and 3). "The construction is clearlyunderstood fromthe sectional view shown in Fig. 1 inwhich view thesprings 29, which normally maintain the heads 27 advanced as showniinFigs. 1 and .2, are compressed'by contact with the solebeingoperatedupon. When the plunger 7 moves in a direction to carrythepresser .bar 21 upward the pressure on the heads 27 from their springs29 causes them to hold the sole on'the work table I and act as stripperspermittingthe knives to be withdrawn from the sole. It will benotedthat'the stripper heads 27 also perform the function of gaging thedepth of cut of the knives when the springs 29 are under compression, asin Fi 4.

In addition to theimprovement 'just described the invention embodiesimproved means for positioning a-sole on the work table. In themachine'of said patent sole gages were provided which requiredadjustment for each new size or style'of sole :to be operated upon. Asdesigned by the present invention the sole gages automaticallyaccommodate themselves to all sizes and styles, at the same timepermitting free operation of the sole stripping devices just described.

The desired construction is provided by an 25 sole engaglng sides, of asufiicient length 55 operation of the knife, and a combined of the outerends of two levers 37, extending inwardly beneath the table, andfulcrumed on separate pivots 39 formed by screws threaded into the underside of the table. The levers 39 are connected by intermeshing gearsegments 41 on the hubs at their inner ends, and a spring 48 isconnected between one segment and the table so as to normally maintainthe gages 31 m a position of approach. With this arrangement, on placinga sole in the machine the m engages an adjustable stop 47, carried belowthe work table, to limit the approach move gages are forced apart andare held yieldingly to the sole whatever its toe contour A lug 45 on oneof the segments 41 ment of the gages. It will be noted that the sidegages 31 have built up walls 49 at their and height to insure anengagement with the sole edge should the sole be warped or bent so as tothrow the forepart upward as frequently occurs. Furthermore the designof .the arms 35, carrying the gages, is such that evenwhen in theirposition of closest approach the presser gages and strippers 27 arealways able, on descending, to engage the face of the sole, no matterhow far the strippers may project beyond the edges of extremely pointedtoes.

In operating the machine the relative po- 1 sition of the gages is suchthat the toe of the sole is correctly positioned, and is held, for thecuts to be made by the knives, whatever the contour of the toe may be,and after the i b power is applied the cuts are made cleanly andaccurately due to the combined action of the strippers and gages, allwithout injury to the knives.

The nature and; scope of the present invention having been indicated andthe preferred embodiment of the invention having been specificallydescribed, what is claimed as new, is

1. A sole fitting machine, having, in combination, a knife for cuttinginto the marginal portion of a sole, gages for engaging the edge of thesole to position it for the presser gage and sole stripper adjacent theknife.

bination, a yielding work table, a positively reciprocated knifearranged to incise a sole on the table, and a depth gage comprising aplunger having a limited yielding movement movable with the knife.

5. A sole fitting machine, having,in combination, a work table, a toecutting tool, a sole stripper at each side of the tool which may projectbeyond the sole edge, and a pair of side gages yieldingly held in theirposition of nearest approach to the tool, constructed and arranged toclear said strippers when in such position. j

6. A sole fitting machine, having, in combination, a work table, a tool,means for, positioning a sole for the operation of said tool comprisinga toe gage and side gages carried on arms having hubs fulcrumed onindependent pivots beneath the table, said hubs having inter-meshinggear segments whereby the gages are moved in unison, and a suitablyconnected spring for holding the side gages yieldingly inward toward thetoe gage.

7. bination, a work table, a tool above the table, a toe gage, and sidegages cooperating therewith comprising'arms extending across the upperside of the table having gaging ends adjacent each side of the toe gage,supports for said arms extending across the lower side of the table,pivots for said supports beneath the table, and means for yield ingly,articularly connecting said supports beneath the table.

8. An insole fitting machine, having, in combination, a work table, twoknives above the table for cutting the material of the lip and the flapat the point of the toe of the insole, a .toe gage, yielding side gagesextending inwardly across the table toward the toe gage adapted to openas an insole is thrust between them, and a sole stripper at each side ofsaid knives. r

9. A sole fitting machine having, in combination, a yielding work table,a positively reciprocated knife arranged to incise a sole on the table,and a combined presser gage and stripper movable with the knifeconstructed and arranged to yieldingly engage the sole in advance of theknife, then to form an unyielding abutment to gage the depth of theincision and finally to strip the sole from the knife.

10. A sole fitting machine having, in combination, a work table, meansfor positioning a sole thereon comprising side gages movable in a planeabove and parallel to the top of the table and carried on members p Asole fitting machine, having,in eomhaving hubs fulcrumed on independentpivots beneath the table, said hubs having intermeshing gear segmentswhereby the gages are moved in unison, and means for yieldingly pressingthe gages toward each other.

11. A sole fitting machine having, in combination, a Work table, a tool,and means for positioning an end portion of a sole for the 10 operationof said tool comprising edge gages movable in a plane above and parallelto the top of the table intocontact with the sole near its end andcarried on members fulcrumed on independent pivots in front of the tooland edge gages, connections for causing the gages to be moved in unisonand means for yieldingly pressing the gages toward each other.

JOHN W. COSGROVE.

